Ukrainians fleeing Russian aggression can find a safe haven in Canada using expedited temporary visas for emergency travel, the federal government announced Thursday while it also ratcheted up the economic pressure on Russia’s oligarchs. The government will provide fast-tracked visas for an unlimited number of Ukrainians who wish to come to Canada to work, and then return home when it is safe, said Immigration Minister Sean Fraser. He said these visas will take just weeks to process, instead of the usual year. “The primary motivation for this program is that it provides the fastest way for us to start welcoming as many Ukrainians as possible,” he said. Fraser said a refugee resettlement program would have taken years, and he learned from his conversations with the Ukrainian community that many people will want to return to their home country when the conflict ends. The application process is expected to open in …